Giving life and luster to an old leather jacket

elbow grease and hide food will do the trick.
check the web, loads of advice

I had a black leather jacket coloured at Toby on rue Lesboussart http://www.teinturier-toby.be/magasins.html
I was very happy with result

Try wiping over with baby wipes first to oil the leather and get the dirt off, that what we were advised for a leather sofa and it works a treat. Buy the cheap baby wipes from your local shop